1. A presentation of cse 101 On Database Management System

2. Topic Covered by ●Anika Tahsin (ID- 15103043) ●Zarin Tasnim (ID- 15103027) ●Touhid Ahmed ( ID- 15104182)

3. Topics Covered ●What is a database management system? ●Activities of DBMS ●Charateristics of DBMS ●DDL, DML, Schema, Instance, Attributes ●Database Users ●Database Administrator

4. What is a DBMS?? A database management system is a collection of programs that carry out activities on a database,

5. Activities of DBMS *Setting up storage structures *Loading data *Accepting and performing updates *Accepting data requests from users and programs.

7. Characteristics of DBMS ●It reduces complex relationships between data. ●Enforces user defined rules and ensures data sharing. ●It provides different interfaces which user can manipulate the data. Etc…..

8. DDL, DML, Schema, Instance, Attributes ●DDL- Data defination language, used to describe data structure in DBMS ●DML-Data manipulation system used to insert delete update data. ●Schema-Logical structure of databse ●Instance-The actual content of database ● Atteibuites- Component of database.

9. Database users Users are differentiated by the way they expect to interact with the system ●Application programmers – interact with system through DML call ●Sophisticated users – form requests in a database query language ●Specialized users – write specialized database applications that do not fit into the traditional data processing framework ●Native users – invoke one of the permanent application programs that have been written previously

10. DATABASE ADMINISTRATOR Database Administrator: Coordinates all the activities of the database system Database administrator’s duties include: * Schema definition * Storage structure and access method definition *Schema and physical organization modification

11. THANK YOU